參數資料
型號: SN54HC393W
廠商: TEXAS INSTRUMENTS INC
元件分類: 計數器
英文描述: HC/UH SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, CDFP14
封裝: CERAMIC, DFP-14
文件頁數: 3/10頁
文件大?。?/td> 191K
代理商: SN54HC393W
SN54HC393, SN74HC393
DUAL 4-BIT BINARY COUNTERS
SCLS143B – DECEMBER 1982 – REVISED MAY 1997
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
FUNCTION TABLE COUNT SEQUENCE
(each counter)
COUNT
OUTPUTS
COUNT
QD
QC
QB
QA
0
L
1
L
LL
H
2
L
LHL
3
L
LH
H
4
L
HL
L
5
L
HL
H
6
L
HH
L
7
L
HH
H
8
H
LL
L
9
H
LL
H
10
H
LHL
11
H
LH
H
12
H
HL
L
13
H
HL
H
14
H
HH
L
15
H
logic symbol
CTRDIV16
1
1CLK
CT=0
2
1CLR
+
3
0
4
5
6
3
13
2CLK
12
2CLR
11
10
9
8
CT
1QA
1QB
1QC
1QD
2QA
2QB
2QC
2QD
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the D, DB, J, N, and W packages.
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